The creators of "The Life" recently put out a video on the making of their live action Halo 3 ODST short, and Joystiq have their hands on it.
If you don't know what 'The Life' is in the first place, be sure to check it out.
"Like us, you've probably been wondering what sort of work (apart from directing people in costumes and laying on the special effects) went into Microsoft's now-legendary Halo 3: ODST live-action short, "The Life." Its creators must have anticipated our curiosity because they've put together a short-but-sweet behind the scenes video, which includes a rough cut of a scene that didn't make it into the final production."
If you don't know what 'The Life' is in the first place, be sure to check it out.